ASTROSAT CZTI

Data Quality Report

Orbit 20044

Creation date: 2024-06-27T18:10:29.629270
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_180T01_9000002986_20044cztM0_level2.evt modeM0/AS1A05_180T01_9000002986_20044cztM0_level2_quad_clean.evt
Size (bytes)420,952,32083,522,880
Size401.5 MB 79.7 MB
Events in quadrant A3,158,597537,971
Events in quadrant B3,121,103540,276
Events in quadrant C3,104,000512,355
Events in quadrant D2,950,427513,058

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130852
B0129101
C0128941
D0126371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6102891.458538%
B6103600.983123%
C6103681.114206%
D6103300.491562%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7222 6103 16 16 0.22% 0.26%
B 7223 6104 0 0 0.00% 0.00%
C 7223 6104 0 0 0.00% 0.00%
D 7223 6104 3 3 0.04% 0.05%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 14 238 89814 553.44 796 783 160.9
A 0 226 6888 37.95 796 783 160.9
A 3 137 6088 32.98 796 783 160.9
B 0 198 29864 194.81 784 767 149.4
B 12 111 17594 112.66 784 767 149.4
B 11 111 15476 98.48 784 767 149.4
C 14 238 119770 675.91 749 757 176.1
C 7 220 54081 302.84 749 757 176.1
C 3 233 9930 52.09 749 757 176.1
D 2 234 27388 144.21 768 749 184.7
D 7 96 22825 119.51 768 749 184.7
D 1 52 18589 96.58 768 749 184.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter